The 70's detective series 'Vegas' was an American crime drama television series that aired on NBC from 1978 to 1981. It starred Robert Urich as Dan Tanna, a private investigator in Las Vegas, Nevada. The show also featured Phyllis Davis, Bart Braverman, Greg Morris, and Tony Curtis. The show focused on Tanna's investigations into various crimes and his interactions with the local mobsters and casino owners.